Here I am proposing that we might share the more unusual presentations of illusion (yes, we've all seen the faces/candlestick, the huge shadow stalk its very small cat, but something 'bigger, better').
To start I offer this which is not in the vein but interesting in that there is a third face should you care to look.
This one is intriguing as we see how the body and bench begin to ghost each other as we view downwards.
This latter is what really prompted this thread, and thus my opening comment.
I would credit the artists but the links appearing on Facebook could not be readily validated. I feel that the source has strong photographic interests and the above are not his work.